ExpKeys reference hardcoded path

[mvdm]

Example from R054_2014_10_10_Keys.m:

cd ('C:\Users\mvdmlab\Dropbox\Matlab\GitHub\Si Analysis')

I like the idea of what you are trying to do here, but the ExpKeys should work standalone. One way to get both is to have the ExpKeys check if a global variable (CheckExpKeysVersion or some such) exists, and then only check using a path also in a global variable defined as part of the analysis workflow.